Attributes
. Hardness Scale . Values
207 BHN Max
(1)
220 to 255 BHN; Rockwel.
(2)
241 BHN Max
(4)
BHN
(41)
BHN; Rockwell
(2)
BHN; Rockwell B
(3)
Rb
(10)
RC
(4)
Rockwell
(1)